Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: grandprix.com
class: IN
ttl: 21600
type: SOA
mname: ns10.dnsmadeeasy.com
rname: dns.dnsmadeeasy.com
serial: 2009812208
refresh: 43200
retry: 3600
expire: 1209600
minimum-ttl: 180

Servidor de Correo
host: grandprix.com
class: IN
ttl: 3600
type: MX
pri: 20
target: in2-smtp.messagingengine.com

Servidor de Correo
host: grandprix.com
class: IN
ttl: 3600
type: MX
pri: 10
target: in1-smtp.messagingengine.com

Información TXT
host: grandprix.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.messagingengine.com ?all
entries: Array